Stock support for heating furnaces



J. v w. CORRlS-TQN STOCK SUPPORT FOR HEATING FURNACES Filed Jan. 16,1935 2 Shaet-Sheqt 1 m mm INVENTOR Gaze/511w WITNESSES:

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Patented Dec. 1935 UNITED STATES PATENT OFFICE I s'roox surron'r Fonnna'mvo FURNACES John Wilson Con-latch, Springfieli la. ApplicationJanuary 16, 1935, Serial No. 2,043 4 Claims. (01. 263-6) This inventionrelates to stock supports for heating furnaces with particular referenceto. the type of heating furnaces employed for heating billets, slabs, orthe like, used in metal processing.

A further object of the invention is to provide improved means forsupporting the material being processed, which will hereinafter, forconvenience, be referred to as billets, without limitation thereby.

A further object of the invention is to provide skid rails for thebillets having associated conduits for cooling liquid, and with improvedrefractory insulation.

A further object of the invention is to provide pipes or tubes throughwhich may be circulated cooling water and to which are attached skidrails so associated as to be aflected by the cooling of the pipes, withrefractory material secured about the exterior of the pipes for pro-,tecting the pipes against the intense heat of the furnace, but with theskid rail exposed for supporting the billets.

Another object in view is the provision of a 5 furnace of the characterdescribed in which the rails which support the billets are arrangedin anonparallel relationship.

The invention, therefore, comprises a system of skid rails and theirsupports, the supports con- 30 structed of tubular material upon whichthe skid rails are secured, said tubular'material being connected ,intoa circulating system for cooling fluid, said tubular supporting membersbeing also enveloped in a refractory material secured there- ;5 to bymembers which are in turn secured direct- 1y to the tubular parts.

The drawings illustrate an embodiment of the invention and the viewstherein are as follows:

Figure 1 is a fragmentary perspective view 40 showing conventionally thearrangement of a pair of skid rails and their tubular supportingstructure,

Figure 2 is a transverse sectional view through one of the skid railsand its supporting struc- 45 hire,

Figure 3 is a fragmentary view in side elevation of one of the skidrails and its supporting structure, and

Figure 4 is a plan view of an arrangement of 5 the skid rails.

I Like characters of reference indicate corresponding parts throughoutthe several views.

The present invention is adapted for association with heating furnacesused for heating metal 55 in various forms and shapes, and ashereinbefore noted, generically referred to as billets, one of which-isshown at H). A furnace structure, indicated conveniently at H, isintended as no limitation in any way upon the invention, but merely forthe purpose of illustrating the use of 5 the invention.

The invention comprises the structure within the furnace for supportingthe billets, and consists primarily of a structure composed of tubesor'pipes I! along the top of which are secured 10 the skid rails l3which are the direct support for the billets l0. These pipes l2 arethemselves supported by other tubular supports I4, and all formed into acirculating system by means of pipes l5 outside of the furnace,preferably be- 15 low the floor thereof. Also, preferably, the pipes IIwill be held in their relation to parallel by cross pipe l6.

All of the tubular structure within the furnace will be provided, withrefractory materialzo II which will be secured to the tubular structurein any approved manner. As shown in the drawings, a plurality of pins I8are secured to the surface of the tubular. structure, in any convenientmanner, as by welding, and will extend ra- 'dially. Preferably, and forthe purpose of more securely anchoring the refractory material,shoulders or heads 19 will be formed as a part of the pins it. Theseheads l9 will, as shown in the structure, be the part which will besecured directly to the tubular structure and the refractory material inplastic form will be packed in about these pins and will be rigidifiedin such manner as the nature of the refractory material provides. It iscustomary in such furnaces to employ skid rails or like supports runningparallel throughout the length of the furnace. Under such conditions thebillets when moving along the skid rails continue with the same spots incontact with the skid rails which are ordinarily cooled and, therefore,produce areas upon the contacting sides of the billets which arenotheated to the same temperature as the remaining part of the billet.Such unheated portions are known in the art as black spots. The presentinvention includes mounting the skid rails in some manner other thanparallel so that the spots of contact of the billets upon the skid railswill vary mounted; billets moving throughout the length of the furnacewill naturally bring into contact with'the skid rails different parts;therefore, every part of the underside of the billet will be subjectedto the heat of the furnace and will be delivered at the delivery end inproper heated condition without the usual final heating: or

soaking. r

As the operation of a furnace constructed in accordance with the presentinvention differs in no wise from the operation of a furnace in O'I'di?nary use, no further explanation seems to be required.

Of course, the stock support for heating furnace illustrated may bemodified and changed in various ways without departing from theinvention herein set forth and hereinafterclaimed.

I claim:-

1. In a heating furnace, a tubular supporting structure, membersoutstanding from the tubular parts and extending radially'therefrom, andrefractory material imbedded within the outstanding members.

2, In a heating furnace, a tubular supporting tubular structure.

4. In a heating furnace, a tubular supporting structure, refractorymaterial enveloping the tubular structure, members imbedded in andextending entirely through the refractory material and fixed to theexterior of the tubular structure, 20 and skid rails extendinglongitudinally along the tubular structure and above therefractorymaterial.

JOHN 'WILSON CORRISTON.

